公开(公告)号：US20110213186A1

公开(公告)日：2011-09-01

申请号：US12673317

申请日：2008-08-07

Applicant: Marco Di Girolamo ,  Maura Brianti ,  Massimo Conte

Inventor： Marco Di Girolamo ,  Maura Brianti ,  Massimo Conte

IPC: C07C41/06 ,  B01J8/06

CPC classification number: B01J8/067 ,  B01J8/003 ,  B01J8/008 ,  B01J8/065 ,  B01J2208/00212 ,  B01J2208/00849 ,  B01J2208/00884 ,  C07C2/08 ,  C07C41/06 ,  C10G3/42 ,  C10G2400/02 ,  Y02P30/20 ,  C07C43/04

Abstract: A tubular reactor is described, for catalytic reactions involving thermal exchanges, in particular for etherification reactions between branched olefins and linear alcohol, for dimerization reactions of branched olefins or cracking reactions, essentially consisting of a vertical tube-bundle exchanger whose tubes contain catalyst, having inlet and outlet nozzles for each passage side of the reagents, catalyst and thermal exchange liquid, characterized in that it has one or more metallic supports situated outside the lower tube plate in the lower part of the reactor for sustaining the catalyst so that the same catalyst is contained not only in the tubes of the tube-bundle but also in said lower part outside the lower tube plate and also in the upper part outside the upper tube plate.

Abstract translation: 描述了一种管式反应器，用于涉及热交换的催化反应，特别是用于支链烯烃和直链醇之间的醚化反应，用于支化烯烃或裂解反应的二聚反应，主要由其管含有催化剂的垂直管束交换器组成， 用于试剂，催化剂和热交换液体的每个通道侧的入口和出口喷嘴，其特征在于，其具有位于反应器下部的下管板外侧的一个或多个金属载体，用于维持催化剂，使得相同的催化剂 不仅包含在管束的管中，而且还包含在下管板外的所述下部以及上管板外部的上部。

公开(公告)号：US20110091369A1

公开(公告)日：2011-04-21

申请号：US12743717

申请日：2008-11-14

Applicant: Paolo Casara ,  Alessandro Gianazza ,  Ivano Miracca ,  Giuseppe Merelli ,  Gustavo Capannelli ,  Aldo Bottino

Inventor： Paolo Casara ,  Alessandro Gianazza ,  Ivano Miracca ,  Giuseppe Merelli ,  Gustavo Capannelli ,  Aldo Bottino

IPC: C01C1/04 ,  C07C273/02 ,  B01D61/42

CPC classification number: C07C273/04 ,  B01D53/326 ,  B01D53/58 ,  B01D53/75 ,  B01D61/44 ,  B01D61/445 ,  C02F1/20 ,  C02F1/441 ,  C02F1/4693 ,  C07C273/16 ,  Y02P20/582

Abstract: The present invention relates to a process for the recovery of ammonia contained in a gaseous purging stream produced in a synthesis process of urea, comprising the following phases: a) subjecting the gaseous purging stream to a washing with an aqueous acidic solution, at a pH ranging from 1 to 6, with the formation of a first purified gaseous stream and an aqueous solution containing an ammonium salt; b) subjecting the aqueous solution containing the ammonium salt coming from phase a) to stripping, after treatment with a strong base, at a temperature ranging from 50 to 250° C. and a pressure ranging from 1 to 40 absolute bar, with the formation of a second gaseous stream comprising NH3, H2O and possibly CO2 and a solution containing a salt of the cation of said strong base; c) subjecting the solution containing the salt of the cation of the strong base coming from phase b) to a Membrane Electrochemical Process (MEP) with the formation of an aqueous solution of the acid used in phase a), an aqueous solution of the base used in phase b) and possibly a diluted aqueous solution of the cation salt of the strong base; d) recycling said aqueous solution of the acid and aqueous solution of the base to phase a) and to phase b) respectively, and recycling said second gaseous stream coming from phase b) to the urea synthesis process. The relative equipment is also described.

Abstract translation: 本发明涉及一种在尿素合成过程中产生的气态吹扫液中所含的氨的回收方法，包括以下阶段：a）在酸性溶液中以pH值进行洗涤， 形成第一纯化气流和含有铵盐的水溶液; b）使来自a）相的含有铵盐的水溶液在强碱处理后，在50-250℃的温度和1至40绝对巴的压力下进行汽提，同时形成 包含NH 3，H 2 O和可能的CO 2的第二气流和含有所述强碱的阳离子的盐的溶液; c）在相a）中使用的酸的水溶液的形成，将含有来自相b）的强碱的阳离子盐的溶液经受膜电化学工艺（MEP），将碱的水溶液 在阶段b）中使用，并且可能是强碱的阳离子盐的稀释水溶液; d）将所述碱的酸和水溶液的所述水溶液分别循环到a）相和b相，并将来自b）相的所述第二气流再循环到尿素合成过程。 还描述了相关设备。

公开(公告)号：US20100186881A1

公开(公告)日：2010-07-29

申请号：US12449900

申请日：2008-02-29

Applicant: Valerio Bergonzio

Inventor： Valerio Bergonzio

IPC: B29C63/06

CPC classification number: B29C63/06 ,  F16L13/0272 ,  F16L58/181

Abstract: A method of forming a protective coat about a cutback between pipes forming part of an underwater pipeline provides for laying a thermoplastic sheet on a supporting sheet; and winding the thermoplastic sheet and the supporting sheet about the cutback to join the thermoplastic sheet to the cutback.

Abstract translation: 在形成水下管道的一部分的管道之间形成围绕切口的保护涂层的方法提供了将热塑性片材铺设在支撑片材上; 并且将热塑性片材和支撑片材围绕切口缠绕以将热塑性片材接合到切割部件。

公开(公告)号：US20100104371A1

公开(公告)日：2010-04-29

申请号：US12530083

申请日：2008-03-06

Applicant: Cristian Scaini ,  Davide Rossin

Inventor： Cristian Scaini ,  Davide Rossin

IPC: F16L1/12

CPC classification number: F16L1/207

Abstract: A method of laying pipeline from a vessel (10) is disclosed. The vessel (10) includes many pipe processing stations (36, 42), arranged across the width of the vessel. In one embodiment, there are two pipe processing areas (38, 40) separated along the length of the vessel. The pipe processing stations (36, 42) may be operable in two modes of operation, for example, a first mode of operation where the vessel produces triple joint pipe strings (from three lengths of pipe section welded together) and a second mode of operation where double joint pipe strings are produced, for example, from two single length pipe sections having a significantly greater length than the single length pipe sections used in the first mode of operation. In one embodiment, a triple joint pipe section is part welded in one pipe processing area (38), then moved along the length of the vessel (10) to a different pipe processing area, where further welding operations are performed on the triple joint. In order for the vessel to operate in two modes of operation, the storage bin facilities (12) for storing single length pipe sections are configured to be able to accommodate different lengths of single length pipe section arranged end to end in a single bin.

Abstract translation: 公开了一种从容器（10）铺设管道的方法。 容器（10）包括布置在容器的宽度上的许多管道加工站（36,42）。 在一个实施例中，沿着容器的长度分离有两个管道处理区域（38,40）。 管道加工站（36,42）可以在两种操作模式中操作，例如，第一操作模式，其中容器产生三重连接管柱（从焊接在一起的管段的三个长度）和第二操作模式 其中例如从具有比在第一操作模式中使用的单个长度管段显着更大的长度的两个单一长度的管段产生双重连接管柱。 在一个实施例中，三连接管部分被焊接在一个管道处理区域（38）中，然后沿着容器（10）的长度移动到不同的管道处理区域，在三个接头上执行进一步的焊接操作。 为了使船只以两种操作模式操作，用于存储单个长度管段的储物箱设施（12）被配置为能够容纳在单个箱中端对端布置的不同长度的单个长度管段。

公开(公告)号：US20090260559A1

公开(公告)日：2009-10-22

申请号：US12385794

申请日：2009-04-20

Applicant: Alessandro Fenini ,  Gianfranco Gamba

Inventor： Alessandro Fenini ,  Gianfranco Gamba

IPC: B63B21/16

CPC classification number: B63B21/16

Abstract: A traction system for operating lines, in particular mooring lines and/or production lines, of a floating production unit has a number of work stations distributed along the unit, at least at two ends of the unit, and engaged by respective operating lines; a main winch; and a cable transmission device having a duty cable connected to the main winch, and guide means for selectively routing the duty cable to each work station for attachment to a respective operating line; at least one auxiliary winch, having an auxiliary cable connectable to the duty cable, is used to unwind the duty cable off the main winch and run the duty cable, along paths defined by the guide members, into a number of positions close to respective work stations.

Abstract translation: 用于操作浮动生产单元的线路，特别是系泊线和/或生产线的牵引系统具有沿着该单元分布的多个工作站，至少在该单元的两端处并由相应的操作线接合; 主绞盘 以及电缆传输装置，其具有连接到所述主绞盘的工作电缆，以及引导装置，用于选择性地将所述占线电缆布线到每个工作站以附接到相应的操作线; 至少有一个辅助绞盘，具有可连接到占空比电缆的辅助电缆，用于将工作电缆从主绞盘上松开，并将工作电缆沿着由引导构件限定的路径运行到靠近相应工作的多个位置 车站。

公开(公告)号：US07114881B2

公开(公告)日：2006-10-03

申请号：US10380271

申请日：2001-10-22

Applicant: Antonio Belloni ,  Renato Bonasorte

Inventor： Antonio Belloni ,  Renato Bonasorte

IPC: F16L1/00

CPC classification number: B23K9/0061 ,  B23K2101/10 ,  C21D9/505

Abstract: A method of laying a pipeline (6) underwater includes the steps of holding an end of a pipeline (6), providing a pipe section (5) for extending the pipeline (6), arranging the pipe section (5) adjacent to the end of pipeline (6) thereby defining a circumferential joint (7) to be welded, and welding the pipes (5, 6) together. A plurality of welding torches (8) move along the circumferential joint (7) and are operated simultaneously to weld the pipes together. The pipes (5, 6) are made of TMCP-SC steel. After the root weld is laid, a cooling ring (1) mounted on an internal clamp inside the pipes (5, 6) sprays cooling liquid, for example a fluid spray of atomised water (10) and air, from nozzles (2) onto an interior surface of the pipes (5, 6) in the region of the circumferential joint (7), thereby cooling the pipes (5, 6).

Abstract translation: 一种在水下铺设管道（6）的方法包括：保持管道（6）的端部的步骤，提供用于延伸管道（6）的管段（5），将管段（5）布置在邻近端 （6），从而限定待焊接的圆周接头（7），并将管道（5,6）焊接在一起。 多个焊炬（8）沿周向接头（7）移动并同时操作以将管道焊接在一起。 管（5,6）由TMCP-SC钢制成。 在铺设根焊后，安装在管道（5,6）内的内部夹具的冷却环（1）将冷却液体（例如雾化水（10）和空气的流体喷雾）从喷嘴（2）喷射到 在周向接头（7）的区域中的管道（5,6）的内表面，从而冷却管道（5,6）。

公开(公告)号：US4304505A

公开(公告)日：1981-12-08

申请号：US105589

申请日：1979-12-20

Applicant: Antonio Silvestri ,  Guglielmo Gargatagli

Inventor： Antonio Silvestri ,  Guglielmo Gargatagli

IPC: F16L1/26 ,  F16L1/04

CPC classification number: F16L1/26

Abstract: A method is disclosed for repairing a damaged pipe laid on deep sea beds, said method substantially comprising the step of joining a central pipe stub between the ends of the two adjoining pipe portions, such operation being performed directly on the sea bed rather than on the pipe-laying barge. Special coupling sleeves are provided at both ends of the central pipe stub, said sleeves being received in a watertight manner on the two pipe terminal portions, by clamping said sleeves thereon. Apparatus and tools for carrying out said method are described in great detail.

Abstract translation: 公开了一种用于修理放置在深海床上的损坏的管道的方法，所述方法基本上包括将两个相邻的管道部分的端部之间的中心管柱连接的步骤，这种操作直接在海床上而不是在 铺管驳船。 在中心管短管的两端设置有特殊的连接套筒，所述套筒通过在其上夹紧所述套筒，以水密方式容纳在两个管端子部分上。 用于执行所述方法的装置和工具将被详细描述。

公开(公告)号：US4234268A

公开(公告)日：1980-11-18

申请号：US21949

申请日：1979-03-19

Applicant: Ambrogio Scodino

Inventor： Ambrogio Scodino

IPC: F16L1/12 ,  B63B35/03 ,  B63C11/00 ,  F16L1/16 ,  F16L55/136 ,  F16L1/00 ,  F16L55/12

CPC classification number: F16L1/166 ,  F16L55/136

Abstract: For lifting from deep sea beds a pipeline trunk, a device is disclosed which is composed by a compact framework of square outline which supports a sealing and pulling head and paired jaw assemblies having sloping surface seats to engage the outer surface of the pipe to be lifted, said jaws being actuated by hydraulic and pneumatic motive means so as to grip the pipe surface firmly. A pipe-cutting device is also provided, which has two discrete cutting units, and the sealing and pulling head is removable from said frame and can be both slid and rotated as to position it correctly coaxially with the pipe trunk.

Abstract translation: 为了从深海床上提取管道干线，公开了一种由方形轮廓的紧凑框架构成的装置，其支撑密封和牵引头以及具有倾斜表面座的配合的爪组件，以与被提升的管道的外表面接合 所述夹爪由液压和气动机构驱动，以便牢固地夹紧管表面。 还提供了一种切管装置，其具有两个分立的切割单元，并且所述密封和拉动头部可从所述框架移除，并且可以滑动并旋转以将其与所述管道主体正确地定位。

公开(公告)号：US4132338A

公开(公告)日：1979-01-02

申请号：US676806

申请日：1976-04-14

Applicant: Ottavio Bove ,  Ugo Cannata

Inventor： Ottavio Bove ,  Ugo Cannata

IPC: B23K9/028 ,  B23K9/12 ,  B23K37/02

CPC classification number: B23K37/0217 ,  B23K9/0286

Abstract: The present invention relates to an apparatus suitable for use in the automatic welding of pipes. The apparatus according to the invention comprises a fixed part or rail band which is clamped around the pipe at a prefixed position and a moving part which is driven with an orbital motion along the rail band and supports a swinging welding torch, a welding rod feeding mechanism and a torch position adjusting mechanism. The swinging motion of the welding torch is produced by a pneumatic system which permits both the amplitude and the frequency of said swinging motion to be adjusted. It is also possible to produce high swing frequencies and various times of stoppage for the torch at the ends of the swinging motion.

Abstract translation: 本发明涉及一种适用于管道自动焊接的设备。 根据本发明的装置包括：固定部分或轨道带，其被固定在预定位置处的管道周围;以及运动部件，其沿着轨道轨道运动被驱动并且支撑摆动焊枪，焊杆进给机构 和割炬位置调整机构。 焊枪的摆动通过气动系统产生，该气动系统允许调节所述摆动运动的振幅和频率。 也可以在摆动运动的末端产生高的摆动频率和不同的停止时间。

公开(公告)号：US4012919A

公开(公告)日：1977-03-22

申请号：US617734

申请日：1975-09-29

Applicant: Giovanni Rosa ,  Claudio Morelli ,  Pasquale Brando ,  Giuseppe Daghetti

Inventor： Giovanni Rosa ,  Claudio Morelli ,  Pasquale Brando ,  Giuseppe Daghetti

IPC: F16L1/12 ,  B63B35/03 ,  F16L1/18 ,  F16L1/20 ,  G05D1/02 ,  F16L1/00

CPC classification number: F16L1/18 ,  B63H25/04 ,  G05D1/0206 ,  B63B35/03 ,  B63H15/00 ,  B63H2005/1254 ,  B63H25/42

Abstract: This invention relates to an improved method for rapidly laying a pipeline in deep water by an anchored floating means. The rapid laying is obtained by varying the forces exerted by winches mounted on the floating means in such a manner as to impart a rapid movement to the floating means, in the longitudinal direction of laying, for a distance equal to the length of the piece of pipe added to the free end of the pipeline to be laid. Before termination of the rapid movement there is applied to the floating means a compensating force, whose direction, sense and intensity are such that, together with the forces exerted by the winches, said compensating force opposes moment by moment the central elastic force which induces a damped oscillatory motion in the floating means. This oscillation is thus eliminated or drastically and rapidly dampened.

Abstract translation: 本发明涉及一种通过锚定浮动装置在深水中快速铺设管道的改进方法。 快速铺设是通过改变安装在浮动装置上的绞车施加的力而获得的，使得在纵向放置方向上使浮动装置快速移动到浮动装置的距离等于该片 管道被添加到待铺设的管道的自由端。 在快速运动结束之前，向浮动装置施加补偿力，其方向，感觉和强度使得与绞车施加的力一起，所述补偿力一时间抵抗中心弹性力，从而引起 在浮动装置中阻尼振荡运动。 因此，这种振荡被消除或急剧地衰减。